Can someone tell me how to hook up a volt gauge. For some reason I've gone brain dead today. Its a Dolphin gauge, here's a pic, the g is ground the I is ignition, what is the other port for. Thanks for any help.
usually the 12v power source (12v with key on) will go through the gauge, meaning cut the wire and connect it to each post. Your signal post is not there so maybe yours will only need the single lead going to it for it to work. Connect it to your other car straight off the battery and see if it reads.
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